CVE-2016-4542 Memory corruption in n/a
Remote attackers can cause denial of service or potential code execution via crafted EXIF header data due to improper argument construction in PHP's exif extension.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2016-4542?
CVE-2016-4542 is a critical memory corruption vulnerability in Fedoraproject Fedora, published on 22 May 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The exif_process_IFD_TAG function in ext/exif/exif.c in PHP before 5.5.35, 5.6.x before 5.6.21, and 7.x before 7.0.6 does not properly construct spprintf arguments, which allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via crafted header data.
Weakness: CWE-119
Which versions are affected by CVE-2016-4542?
It affects 3 products.
Products include Fedoraproject Fedora, Opensuse Leap, Php Php.
How do I fix CVE-2016-4542?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2016-4542 being exploited?
There is no known exploitation of CVE-2016-4542 in the wild and no public exploit code.
Other vulnerabilities in Fedoraproject Fedora
Sources
Also known as GHSA-h57j-2f86-23m5, UBUNTU-CVE-2016-4542.